fn main() {
    let mut input = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut input).ok();
    let input: Vec<u64> = input
        .split_whitespace()
        .map(|n| n.parse().unwrap())
        .collect();

    let h = input[0];

    let mut hh = input[2..].to_vec();
    hh.sort_unstable();
    hh.reverse();

    match hh.iter().position(|&h_| h_ < h).or(Some(hh.len())) {
        Some(n) if n % 10 == 0 => println!("{}st", n + 1),
        Some(n) if n % 10 == 1 => println!("{}nd", n + 1),
        Some(n) if n % 10 == 2 => println!("{}rd", n + 1),
        Some(n) => println!("{}th", n + 1),
        _ => unreachable!(),
    }
}